{"action":"Upgrade @astrojs/node to 9.5.4 or later.","affected":[{"fixed":"9.5.4","introduced":"9.0.0"}],"component":"@astrojs/node","cve_ids":["CVE-2026-27729"],"ecosystem":"npm","epss":0.00482,"exploited":false,"fixed_versions":["9.5.4"],"ghsa_id":"GHSA-jm64-8m5q-4qh8","id":"tcs_01M5KFYD5P4181SJP79PZ2ZSMC","modified_at":"2026-02-25T22:56:19.538922Z","published_at":"2026-02-25T22:33:13Z","references":["https://osv.dev/vulnerability/GHSA-jm64-8m5q-4qh8","https://github.com/withastro/astro/security/advisories/GHSA-jm64-8m5q-4qh8","https://nvd.nist.gov/vuln/detail/CVE-2026-27729","https://github.com/withastro/astro/pull/15564","https://github.com/withastro/astro/commit/522f880b07a4ea7d69a19b5507fb53a5ed6c87f8","https://github.com/withastro/astro","https://github.com/withastro/astro/releases/tag/@astrojs/node@9.5.4"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"GHSA-jm64-8m5q-4qh8","url":"https://osv.dev/vulnerability/GHSA-jm64-8m5q-4qh8"}],"summary":"Astro has memory exhaustion DoS due to missing request body size limit in Server Actions"}